diff --git a/src/Concise/Console/Command.php b/src/Concise/Console/Command.php
index 329a3832..f93abf36 100644
--- a/src/Concise/Console/Command.php
+++ b/src/Concise/Console/Command.php
@@ -5,12 +5,19 @@
 use Concise\Console\TestRunner\DefaultTestRunner;
 use Concise\Console\ResultPrinter\ResultPrinterProxy;
 use Concise\Console\ResultPrinter\DefaultResultPrinter;
+use Concise\Console\ResultPrinter\CIResultPrinter;
 
 class Command extends \PHPUnit_TextUI_Command
 {
+    protected $ci = false;
+
     protected function createRunner()
     {
-        $resultPrinter = new DefaultResultPrinter();
+        if ($this->ci) {
+            $resultPrinter = new CIResultPrinter();
+        } else {
+            $resultPrinter = new DefaultResultPrinter();
+        }
         if (array_key_exists('verbose', $this->arguments) && $this->arguments['verbose']) {
             $resultPrinter->setVerbose(true);
         }
@@ -26,6 +33,7 @@ protected function createRunner()
     protected function handleArguments(array $argv)
     {
         $this->longOptions['test-colors'] = null;
+        $this->longOptions['ci'] = null;
         parent::handleArguments($argv);
 
         foreach ($this->options[0] as $option) {
@@ -35,6 +43,10 @@ protected function handleArguments(array $argv)
                     echo $testColors->renderAll();
                     exit(0);
                     break;
+
+                case '--ci':
+                    $this->ci = true;
+                    break;
             }
         }
     }
diff --git a/src/Concise/Console/ResultPrinter/CIResultPrinter.php b/src/Concise/Console/ResultPrinter/CIResultPrinter.php
new file mode 100644
index 00000000..4f624241
--- /dev/null
+++ b/src/Concise/Console/ResultPrinter/CIResultPrinter.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Concise\Console\ResultPrinter;
+
+class CIResultPrinter extends DefaultResultPrinter
+{
+    protected $lastPercentage = -1;
+
+    public function update()
+    {
+        $percentage = $this->counter->getPercentage($this->getTestCount());
+        if ($percentage > $this->lastPercentage) {
+            $this->write($this->getAssertionString());
+            $this->lastPercentage = $percentage;
+        }
+    }
+}
diff --git a/src/Concise/Console/ResultPrinter/Utilities/ProgressCounter.php b/src/Concise/Console/ResultPrinter/Utilities/ProgressCounter.php
index 719ef8c6..55985199 100644
--- a/src/Concise/Console/ResultPrinter/Utilities/ProgressCounter.php
+++ b/src/Concise/Console/ResultPrinter/Utilities/ProgressCounter.php
@@ -46,10 +46,14 @@ public function render($value = 0)
         $this->atLeastZero($value, 'Value');
         $r = $value . ' / ' . max($value, $this->total);
         if ($this->showPercentage) {
-            $percentage = (0 === $this->total) ? 0 : floor($value / $this->total * 100);
-            $r .= sprintf(' (%3s%%)', min(100, $percentage));
+            $r .= sprintf(' (%3s%%)', min(100, $this->getPercentage($value)));
         }
 
         return $r;
     }
+
+    public function getPercentage($value)
+    {
+        return (0 === $this->total) ? 0 : floor($value / $this->total * 100);
+    }
 }
diff --git a/tests/Concise/Console/ResultPrinter/CIResultPrinterTest.php b/tests/Concise/Console/ResultPrinter/CIResultPrinterTest.php
new file mode 100644
index 00000000..96088834
--- /dev/null
+++ b/tests/Concise/Console/ResultPrinter/CIResultPrinterTest.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Concise\Console\ResultPrinter;
+
+use Concise\TestCase;
+
+class CIResultPrinterTest extends TestCase
+{
+    public function testUpdateCallsWrite()
+    {
+        $resultPrinter = $this->niceMock('Concise\Console\ResultPrinter\CIResultPrinter')
+                              ->expect('write')
+                              ->get();
+        $resultPrinter->update();
+    }
+}
diff --git a/tests/Concise/Console/ResultPrinter/Utilities/ProgressCounterTest.php b/tests/Concise/Console/ResultPrinter/Utilities/ProgressCounterTest.php
index 91fc73df..de32b9ad 100644
--- a/tests/Concise/Console/ResultPrinter/Utilities/ProgressCounterTest.php
+++ b/tests/Concise/Console/ResultPrinter/Utilities/ProgressCounterTest.php
@@ -112,4 +112,10 @@ public function testShowPercentageMustBeAnInteger()
     {
         new ProgressCounter(123, 'foo');
     }
+
+    public function testCanGetPercentage()
+    {
+        $counter = new ProgressCounter(5);
+        $this->assert($counter->getPercentage(1), equals, 20);
+    }
 }
diff --git a/wiki b/wiki
index a57a69c4..a4d3f20e 160000
--- a/wiki
+++ b/wiki
@@ -1 +1 @@
-Subproject commit a57a69c40225f7192115eca9eb940808c2292388
+Subproject commit a4d3f20e84086083a44f4eced715b5e19a3d4384